I'm upgrading my Wanhao Duplicator i3 v2.1 printer and needed a box that would attach to my printer. couldn't find anything so i modified Stonecold's excellent Bear case (https://www.prusaprinters.org/prints/22319-mk3s-bear-btt-skr-v14-case) to attach to the holes where the Z-endstop used to be. Fits like a champ.
The original (pictured) version did did a bit low, so I moved the tab down about an inch in the uploaded model.
Same as original. 0.2mm, PETG, 20% infill
The author remixed this model.